One of the beneficiaries would be Sprint Nextel (S, Fortune 500), whose shares advanced more than 6% Wednesday. Stocks of the other mobile carriers --Verizon (VZ, Fortune 500) and Leap International (LEAP) -- were slightly down.

Also on Wednesday, Ford (F, Fortune 500) announced a partnership with the car-sharing service Zipcar (ZIP). The second-biggest U.S. auto manufacturer agreed to supply up to 1,000 vehicles to over 250 Zipcar locations on U.S. college and university campuses.